ROMP of novel hindered phenol-functionalized norbornenes and preliminary evaluation as stabilizing agents†

A series of new norbornene monomers containing sterically hindered phenol groups have been synthesized and polymerized via ring-opening metathesis polymerization (ROMP) using the Grubbs 3rd generation catalyst (G3’). ROMPs exhibit first-order kinetics molar masses increase linearly with monomer conversion well-controlled hindered-functionalized polynorbornenes were obtained a to initiator ratio up 1 000. The rate constants show that ROMP activity is closely associated steric congestion. antioxidant behavior these phenol-containing different para-bridged side in polypropylene (PP) was estimated by onset oxidation temperature (OOT) measurements. ability norbornenes copolymerize dicyclopentadiene (DCPD) used bound covalently moiety onto polydicyclopentadiene (PDCPD) resin whose thermal ageing has investigated.